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Finding the Fourth Proportional to 403,726.90, 605,590.35 and 297,973.30

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Solution

The fourth proportional to 403,726.90, 605,590.35 and 297,973.30 is: 446,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,726.90 : 605,590.35 = 297,973.30 : x
  2. Step 2: Convert to fraction form
    403,726.90/605,590.35 = 297,973.30/x
  3. Step 3: Cross multiply
    403,726.90x = 605,590.35 × 297,973.30
  4. Step 4: Simplify right side
    403,726.90x = 180,449,755,037.66
  5. Step 5: Solve for x
    x = 180,449,755,037.66/403,726.90
  6. Step 6: Final answer
    x = 446,959.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.